This DNA History quiz is designed to assess your basic knowledge in ‘Scientists in DNA Structure Discovery ’.Choose the best answer from the four options given. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking 'Score'. Percentage score will be displayed along with right answers.

1. In 1869, he isolated DNA with associated proteins from white blood cells and called it as "nuclein". The scientist who identified DNA for the first time as a distinct molecule is
Watson and Crick
Erwin Chargaff
Friedrich Miescher
Rosalind Franklin
2. According to him, DNA is a string of nucleotide joined through phosphate group (1919). The scientist who puts forward the structure of nucleotide is
Phoebus Levene
Frederick Griffith
Oswald Avery
Francis Crick3. In 1863, he explained that "factors" passed on from parent to offspring is responsible for heredity. The scientist who indirectly mentioned "genes" as "factors" for the first time is
Erwin Chargaff
Friedrich Miescher
Gregor Mendel
Alfred Hershey 4. In 1928, he observed that "transforming factor" is responsible for the virulence of non-virulent live bacteria. This experiment was conducted by
Frederick Griffith
Erwin Chargaff
Gregor Mendel
Martha Chase
5. In 1944, they found out that the "transforming factor" is DNA. This experiment that proved DNA as the genetic material was conducted by
Alfred Hershey and Martha Chase
James Watson and Francis Crick
Avery, MacLeod and McCarty
Maurice Wilkins and Rosalind Franklin6. Who used the term "nucleic acid" for the first time in 1899?
Friedrich Miescher
Avery
Altmann
Erwin Chargaff7. The experiment using T2 phage in 1952 further confirmed that the DNA is the genetic material. Bacteriophage experiment was carried out by
Alfred Hershey and Martha Chase
James Watson and Francis Crick
Maurice Wilkins and Rosalind Franklin
Lederberg and Tatum
8. In 1950, he found out that the purines and pyrimidines are always in equal amounts. This key observation in elucidating DNA structure was made by
Francis Crick
Frederick Griffith
Erwin Chargaff
Maurice Wilkins9. Who is the unsung hero whose X-ray diffraction pictures of DNA actually helped in the discovery of DNA structure is?
Maurice Wilkins
Rosalind Franklin
Erwin Chargaff
Linus Pauling
10. In 1953, the double helix structure of DNA was proposed and later in 1962 Nobel Prize were awarded to
James Watson and Francis Crick
James Watson, Francis Crick and Chargaff
James Watson,Francis Crick, Maurice Wilkins and Rosalind Franklin
James Watson,Francis Crick and Maurice Wilkins
Score =
Correct answers: